There are no quick answers to questions about the type of room air purifier to buy or the necessity of investing in a HEPA filter. Similarly, choosing the right vacuum cleaner requires careful thought without relying on paid endorsements or implied seals of approval. To guide the decision-making process, here are some important factors to consider when buying HEPA filters.
Air Filter Basics
The term “air purifier” is misleading. This is because no device can truly purify the air. Even units equipped with ultraviolet (UV) light, which can eliminate viruses and bacteria, cannot purify the entire volume of air you breathe. The primary function of an air cleaner is to remove small particles that manage to pass through the filter.
On the other hand, HEPA (high-efficiency particulate air) filters are specifically designed to capture 99.7 percent of particles measuring 0.3 microns or smaller. These particles can easily penetrate the lungs and encompass common allergens like mold, animal dander, dust mites, and pollen. HEPA filters also trap certain fine particles emitted by smoke and pollution.
Before Buying
Individuals can minimize air particles from the outdoors by taking several measures. Firstly, consider replacing old and energy-inefficient windows. Window frames should be sealed with caulk to prevent the intrusion of moisture, mold, pollen, and insects. Cover up foundation cracks and ensure proper home insulation to enhance indoor air quality.
Opt for smooth surface flooring and furniture that can be easily damp-mopped or dusted. Many particles that trigger allergy and asthma symptoms remain airborne briefly before settling as dust. Carpets tend to harbor allergens; think about whether they’re really needed.
Getting a vacuum with a HEPA filter traps some particles, but not all. Get a room or whole house air filtration system to remove these remaining airborne particles.
Room Air Cleaners
Utilizing a HEPA room air cleaner can be advantageous in homes without central HVAC systems or with indoor pets. However, it’s important to do something about the settled dust reservoirs and restrict pets from accessing the bedroom area.
Note that the effectiveness of a room air cleaner is limited to the room in which it is placed. Filters can only capture particles that pass through their filter.
Don’t buy an ozone-generating “air purifier.” The Environmental Protection Agency (EPA) and medical professionals recognize ozone as a respiratory irritant. It may exacerbate allergy or asthma symptoms.
While filters like ULPAs may be suitable for specific industrial or scientific environments, they’re not intended for home use. Remember that no air cleaner or filter can completely solve indoor air quality issues. Improving indoor air quality is a multi-step process that begins with addressing the source of allergens. Air filtration is just one of several measures that can benefit individuals, both children, and adults, with allergies and asthma.
